Now showing 1 - 4 of 4
  • Publication
    Blisk Specific Query Language (BLISQL) - An approach for domain specific data querying in Blisk Manufacturing
    Product lifecycle management (PLM) is constantly improved by a steadily growing amount of data collected along the product and process development chain. This data supports designing optimized geometries and manufacturing processes. For the optimization of the manufacturing process, data from process design and manufacturing are extracted and processed. The use of a query language is helpful to make the extraction more efficient. Query languages, referring to the specific domain of a component, simplify the formulation of the queries. We present an approach for domain specific data querying in blisk manufacturing based on the Resource Description Framework (RDF) using SPARQL.
  • Publication
    Cloud-based process design in a digital twin framework with integrated and coupled technology models for blisk milling
    ( 2022-12-19) ;
    Kienast, Pascal
    ;
    Vinogradov, Georg
    ;
    ;
    In this publication, the application of an implemented Digital Twin (DT) framework is presented by orchestration of CAM-integrated and containerized technology models carrying out FEM-coupled simulations for the finishing process of a simplified blade integrated disk (blisk) demonstrator. As a case study, the continuous acquisition, processing and usage of virtual process planning and simulation data as well as real machine and sensor data along the value chain is presented. The use case demonstrates the successful application of the underlying DT framework implementation for the prediction of the continuously changing dynamic behavior of the workpiece and according stable spindle speeds in the process planning phase as well as their validation in the actual manufacturing phase.
  • Publication
    Towards Ontology-based Lifecycle Management in Blisk Manufacturing
    Product Lifecycle Management (PLM) handles the typical stages of a product's lifespan, and is usually implemented via different methods. This paper addresses the stages product design, process design, process analysis and manufacturing in the product and process development chain of a blade-integrated disk (blisk). Domain ontologies are evolved and incorporated, as well as used with Uniform Resource Identifiers (URI) to implement a comprehensive PLM in the Internet of Production. An architecture based on the Resource Description Framework (RDF) that offers both ingestion and utilization of valuable information along the blisk lifecycle, and therefore enables PLM for all involved participants, is presented.
  • Publication
    Knowledge-Based Process Design Optimization in Blisk Manufacturing
    The manufacturing process of blade-integrated disks (blisks) represents one of the most challenging tasks in turbomachinery manufacturing. The requirement is to machine complex, thin-walled blade geometries with high aspect ratios made of difficult-to-cut materials. In addition, extremely tight tolerances are required, since the smallest deviations can lead to a reduction in efficiency of the blisk in the later use. Nowadays, the ramp-up phase for the manufacturing of a new blisk is time and cost-intensive. To find a suitable manufacturing process that meets the required tolerances of the blisk, many experimental tests with different process parameters and strategies are necessary. The used approach is often trial and error, which offers limited testing opportunities, is time-consuming and waste of resources. Therefore, the objective of this paper is to develop a knowledge-based process design optimization in blisk manufacturing. For this purpose, this paper picks up the results from our previous work. Based on these results, an experimental validation of the two process design tasks “number of blocks” and “block transition” is conducted. As part of the validation, the results of machining tests on a demonstrator blisk made of Inconel 718 are presented and discussed.